Sometime ago I had an issue with Microsoft Windows XP Service Pack 3 and I quickly found out none of HD audio/modem devices where recognized even after installation of proper drivers. I’ve tried few different solutions, until I found this entry in some Chinese forums (thanks Google for translations, and sorry forgot the source). To make Windows see these devices (Audio device on High Definition audio bus) follow step below:

Update3:Websense Security thinks my website is Malicious and my best guess is because one of links I gave for kb888111xp2 patch was pointing to Rapid-share, which I guess makes my site assumed automatically to be malicious by Websense…

I tried to convince them multiple times, but I guess convincing doesn’t work as they are assigned me with “Malicious” label yet again.

As Alternative mirror you can download the file below. Extract it to temp folder and inside under MSHDQFE\Win2K_XP\us you’ll have it.

Thanks!!! You are a god! In case other people are looking for this, it fixed my HP laptop with Conexant HD Audio. Got the patch from Hydrogen Audio: http://www.hydrogenaudio.org/forums/index.php?showtopic=47079

Frankly i didn't tested user modified KB888111 for the SP3, but I assume right click on hdaudio.inf and choose "Install" should do the trick or otherwise follow the reg modifying method - its proven - works!

I have the following issues after SP3 install on an HP laptop (8510W running XP Pro) and going into and out of standby - - task bar resized to default, wireless adapter dead until reboot, and (like you) audio dead until reboot. Any ideas?? Please email me bobmccroskey(at)mindspring(dot)com. HP Tech Support was no help. Thanks much in advance!!!!!

Thanks, it worked for me too. I got a Lenovo T61 in which I installed xp with SP3 and I was not able to make the sound to work, it has a SoundMax Integrated Digital HD Audio and now it's working fine... Thank you again from NY

Thanks so much...one of ur guide help me on reinstalling sp3 to my v3630TU laptop...although at first its not working...i just find the answer by force install the audio driver..anyway..thanks for ur tips...

This fixed my audio problem on my Lenovo. Can hear the sounds from my system now. However, I just found out now that the microphone does not work.

When I receive a call or test sound from Skype, Mic is being muted and i have no idea how it happened. I just know it is muted because while my volume control is open, the Muted checkbox under Mic properties suddenly is ticked.

When i record audio through some software like Audacity, Mic also turns to be muted automatically so it does not record anything.

When I open Realtek HD Audio Manager from systray, it shows from Audio I/O tab, microphone is like disabled or disconnected marked by a red dot (instead of green for output).

Can't find the solution to this yet. Hope you could help. Thanks in advance.

Under device manager > other devices, there's still a big yellow "?" over Audio Device on High Definition Audio Bus... What can seem to be the problem? I've arleady installed the Realtek drivers.. but now this.. any tips/info for it?

Hi BSA, I came across this post while searching for a way to get my sound card to work. This isn't exactly my problem (in fact I tried the fix, with no luck), but you seem like you might know enough to help me out.

I reinstalled XP with a slipstreamed SP3 disk, and downloaded all the necessary drivers from Dell, based on my service tag number. Everything installed fine, except my sound card, which isn't even detected by Windows. However, in the boot diagnostics, my speakers work fine, so I'm certain it's a software problem, and more specifically a windows problem.

Device Manager shows that Microsoft UAA Bus Driver for High Definition Audio is present, and installing the drivers from Dell adds a SigmaTel High Definition Audio Codec, and a couple of hidden Creative drivers... nothing which suggests an actual device though. Most importantly, it does NOT detect any unknown (question-marked) devices which might be a sound card.

The soundcard detected in the BIOS setup is a SigmaTel 9200.

At this point, I've officially run out of ideas. I've tried installing a number of different drivers... Conexant, Realtek, Intel, based on different suggestions I've found on the web, as well as played with the order of installation of the Sigmatel and Creative drivers in relation to each other and to the chipset drivers from Dell.

I understand if you don't care to do tech support for me, but at this point my remaining solution is to buy an external soundcard, so I figure I might as well ask. I'll gladly provide any additional info you might need.

Unfortunately, my PnP SD Emulator driver is installed and working, and that second link focuses mostly on Vista, but thanks for replying anyway. It sounds like there are a ton of problems with Sigmatel drivers... in all my searching, I must have seen a couple dozen unique problems; unfortunately mine seems to be the most unique, as I have only found one other post with the exact same symptoms.

If I had known how much time I'd be investing in trying to fix this thing, I would have just bought a new card right away...

Thanks BSAyou are a genious....I never knew that its so easy to fool a computer.....First time I paid a techie to resolve this....but after that I had lot of problems for days.....then suddenlyI found you.....the saviour...Thanks again...

@Max,Both hotfixes you gave link to not relevant for SP3, and registry edit is only needed for sp3.KB888111 is limited distribution hot fix and it is NOT provided by MS support site, only by 3rd party vendors.My solution doesn't require complicated workarounds like manually forcing UAA device to restart.

@Bruckal Hey, while this post isn't directly discussing this issue, you might want to check links on this forum post and help troubleshoot your issue. I feel like I might write a separate post about it later on.

Hey man,I installed Win XP3 in hp laptop dv 2000 series. As usual Audio device is not working.i have changed the CDSversion to 200 & installed kb8881111 but my "Audio Device on High definition Audio Bus" is still listed in other devices with a yellow question mark sayin on driver for this device has not been installed? wat do? im searchin for this for almost a week for so many solution but nothing is working...

Help Please!! Sorry, but I have to ask the same question, I have a Cicero PC with a gigabyte Main Circuit Board: Seanix 8IG1000MKBus Clock: 200 megahertzBIOS: Award Software International, Inc. FCa 05/05/2003......MultimediaMPU-401 Compatible MIDI DeviceRealtek AC'97 AudioStandard Game Port.......... I reformatted my PC and went through a lot of mind boggling hair pulling trouble to get motherboard chipset drivers, lan drivers and audio drivers for this pc, I have followed your instructions and still have no sound, drivers installed, plug and play installed, BIOS ok, dxdiag shows installed media but gives error failure at step 3 [directsoundcreate]:HRESULT=0x88780078 [no driver] when checking testdirectsound, but plays music through speakers when checking realtek ac97 audio testdirectmusic under the Music tab, but I still have no sound device when I check device manager, no little sound icon in right lower window, still nothing, ..... can you help me, please ..... thanks Bekka

Hey Anon,This laptop [DV4-1020us] got IDT High Def integrated Sound, which usually hard to make em work in XP.Try drivers below and good luck!!http://drivers.softpedia.com/get/SOUND-CARD/OTHER-SOUNDCARDS/ECS-945GCT-M2-V10-IDT-High-Definition-Audio-Driver-040.shtml

you are really great... thanks for giving solutions to all ppl with patience... Great of ya...

btw, ma prob is i use DG45ID motherboard that has IDT HD Audio and Built in Dolby Home Theater.. In vista i get all the features working cool. In XP SP3 i don get the HD audio control. only the normal audio control is coming.. the KB******SP2.EXE patch is included in the IDT software itself. Jus the Hex Change alone will solve my problem huh??? Moreover The Dolby Control Center will work if the HD audio installed???

Bored SysAdmin, I am impressed. What a clever fix! I was able to remote into my sister's computer and perform the fix as you described. Worked like a charm. I can't emphasize how much you rock :) Thanks again.

I HAVE READ COMMENTS ON THIS FORUM AND I'M HIGHLY IMPRESSED WITH THE NEWS OF SOLUTIONS TO PROBLEMS. BUT I NEED ASSISTANCE. MY ACER ASPIRE 5715Z NOTEBOOK PRODUCES NO SOUND. IT REQUESTS FOR MICROSOFT UAA BUS DRIVER FOR HIGH DEFINITION AUDIO. I'VE TRIED MANY LINKS WITHOUT SUCCESS. AT PRESENT, I'M USING WIN XP SP2 AFTER REMOVING VISTA SOME COUPLE OF WEEKS BACK. CAN ANYONE HELP ME GET THIS UAA HD AUDIO BUS DRIVER? I APPRECIATE YOUR ASSISTANCE.

please if anyone knows how to help me solve the problem of UAA BUS DRIVER FOR HIGH DEFINITION AUDIO FOR ACER ASPIRE 5715Z NOTEBOOK, RUNNING WINDOWS XP SP2,PLEASE FORWARD IT TO nyereugo2k3@yahoo.com. I APPRECIATE YOUR EFFORT. THANKS.

Hi, I will get sound using either kb835221 or kb888111xpsp2 with Chinese reg edit of service pack version id.

BUT after restart the drivers have disappeared... The UAA installs...The hardware is found and I can install the idt HD inf file. After restart it is all gone and I have to do it again. I have a HP DV4. That HP driver you posted for another module will not work. Yellow exclamation mark. I have downloaded a similar service pack intended for my model dv4-1248tx - "sp41616". This can only be installed after having reinstalled kb888111xpsp2. But it will also disappear after restart.

I have a Compaq Presario V3804AU and I've encountered the same problem. I tried your solution and it worked like magic. The sound worked again and it worked the next morning. After I turned off my laptop that morning and tried to work on it again afterward, Windows (again) failed to detect my device. There's a error message saying something like: no active mixer detected... I'm really desperate and run out of solutions.

BSA - I still have the problem here and I've spent ~15 hrs (even with Dell Support) trying to fix this.

I have a Dell Vostro running XP, SP3. with an integrated Realtek HD Audio Driver.

Out of the blue I couldn't hear audio. Every device I have is enabled and working properly, including the Realtek High Definition Audio under "Sounds..." and the "Microsoft UAA Bus Driver..." under System Devices. FYI, the UAA driver version is 5.10.0.5010. But there is No Audio Device.

It appears that I need to install UAA driver 5.10.0.5013 BEFORE installing the Realtek HD driver in order to hear audio?

I can't seem to get UAA 1.0a to be installed. For instance, through the device manager I uninstall Realtek and Microsoft UAA. Then I try to install UAA 1.0a but it doesn't seem to work? I'm just stuck.

I'm having a problem with just a few files but I can't seem to get this thing straight!

BoredSysAdmin, i have a problem which is weird. I using default microsoft HD Audio UAA and it sometime detect only "modem device on HDA" sometime "Audio device on HDA". After using ur method, its only detect the modem which is so frustrating. Please help me to deal with this problem. My computer spec: Acer Aspire 4520 with Agere HDA and Realtek HDA.

Dear Anon with Acer 4520:Did you tried to install official Acer drivers from here ?I'd try to uninstall both modem & sound drivers and try to install official drivers first. This post is more design for users of HP machines who want to install XP on pc sold with Vista, since HP dropped supporting XP on newer pc's. Acer official drivers "should" install correctly in your XP sp3

I want to thank you very much for your 'sound' advice! I have Windows XP Home Service Pack 3 with this problem after trying to upgrade the Realtek driver.

I followed the instructions and failed miserably, only later to discover I hadn't deleted the Realtek driver in Settings / Control Panel / System / Hardware Device Manager / Sound, Video and Game Controllers / Realtek High Definition Audio! Please alert your readers in case this happens to them.

Many thanks for your help as I have now restored the sound. I shall bookmark your blog for future reference. Bets wishes,Richard

In doing this process of getting audio to work for this laptop, has anyone else encountered the laptop asking for TWO drivers for the, "Audio Device on High Definition on Audio Bus"?

If I install the drivers for Realtek HD Audio, I can get one of the two yellow notifications to disappear in the device manger. This does allow audio to work, but as long as I do not close the lid to the laptop. If I try to attempt to comeback from standby, audio stops working unless I restart the system.

Also, upon restarting the system, I will then be prompted again to install a driver for the second "Audio Device on High Definition on Audio Bus".

All my attempts to find something for this additional thing has failed.

I have followed the above instructions as well but with no success in solving these two problems.

Can anyone please help? I am so lost and out of my element on trying to remedy this....

Didn't work for me on the first try. This is the end of 2009 and MS still hasn't fixed this? A user just installed SP3 and broke this. I went through the steps and I only get audio in Windows Media Player. I can't get audio in IE or even in the sound control panel when trying to preview system sounds. ugh..

Hello Mr. Bored SysAdmin. I have a SB Audigy 2 zs Platinum Pro sound card and I can only ear sound from my headphones. The mb is an ASRock M266a, Intel® P4 processor with 2Gb´s Ram. I have tried with both old and new drivers and tried your solution but still no sound from speakers(unless i use the headphone channel on external box). I have had this issue since sp3 update... 1 year ago.(bought really nice headphone set sony mdr-7506, so not everything is bad) Do you have any sugestions? Thank you for your site, one of the best solutions I found...

hey BSA.. ím in desperate need of your help. I have a asus maximus ii formula mobo, with an external SupremeFX X-Fi HDA sound card. I slipstreamed SP3, but neither of the guide's are working? I cant see my audio device or anything in System Devices.

Hi BSA, i just downgraded my acer 4520 from vista to xp unattended edition. It has been the worst nightmare EVER!, i installed all the drivers sucessfuly but when i restart everything turns to crap! Realtek HDA dissapears, and i really dont know what to do, i`ve searched for days the so called UAA MICROSOFT DRIVER, and it actually worked, but then the problem remained. My system is on 200 sp2, so i directly installed the sp2 file you named before, and it didnt work. Please help me, because i need the laptop for recording purposes, ergo right now its just a piece of useless plastic located in my room.

Hi BSA, great posts. I have been on this problem for 40+ hours. I tried your methods and I was able to get audio to work for the windows media player and also for the streaming through windows media, but when I try to stream youtube videos, I get the video but no sound. Funny thing is that before the registry update during the SP3 installation, I can stream youtube videos fine. I'm a bit confused. Do you know what is going on?

Hey UpAllNight, If you have sounds in WMP, but not on youtube - you might have issue with Adobe Flash - uninstall it and reinstall with latest version:http://get.adobe.com/flashplayer/Make sure to un-check McAfee Crapware

Hi BSA, yes i did, a thousand of times, in fact i was running out of ideas so i installed sp3 due to my xp had sp2 and i thought that maybe that was why your solution didnt work for me, but its actually the same result, its like the realtek hd doesnt exist. I delete de realtek hd and the microsoft uaa and downgrade from 300 to 200, then i restart and install the uaa patch and switch it to 300 again and restart, and finally i install realtek hd drivers and restart, but windows never recognized the audio card. The first times i tried your solution it actually worked, and then even that stopped working, at the moment nothing works.What should i do? i think im the only one in this blog whose laptop is still broken. I really need your asistence BSA, pls HEEEEELP!

Oh, and i forgot to tell you, when i try to install the realtek hd manually by the ADD HARDWARE option, windows tell me that the driver is installed but will not work properly and gives me a CODE 10 error message. The device manager shows me the realtek hd audio definition with a yellow exclamation mark.

After trying for two days i finally have my audio up. Thanks a lot for the info!

I have a compaq 3018tu and my audio drivers were working for XP sp2 but after re-installing xp with sp3, audio and modem devices were not getting recognized.Thanks to you registry tweak every thing is working now.

For the first time since I got this Dell XPS M1330 laptop two years ago, I have audio in Windows XP. All it needed was this silly little Hdaudbus.sys file from your UAAforXPSP3.zip file, and then the drivers that I installed long ago suddenly worked, without even rebooting.

THANK YOU! And thank you for putting it up on Google Sites, because it's the only URL that still worked.

Thanks, this worked for me. I also had to download the modem file mdmxsdk.sys. Setup then had an error copying HFXSetup.exe - which I punted on. Didn't seem to be that important (caveat - I don't care about the modem working) and I have sound back for the first time in a long time using the SP2 spoof.

Iam using HPG50-112NR my problem is i had downgraded my OS from vista to WIN XP SP2,Now my audio drivers are not working.I had tried all the methods for getting audio drivers.Can any one help me how to get back my drivers.Please help in this regard.I will be very much thankful to you.

sir, you are a gentleman and a scholar! i followed the steps to edit the registry to indicate sp2, used that exact patch, which i downloaded directly from microsoft. THEN installed all my device drivers. worked perfectly!!

a few things worthy of mention that worked for me as well:

1.)instead of installing with the .exe, extract "kb888111xpsp2" with 7zip or the like, open your device manager, and manually point the "pci device" in "system devices" to the "common files" folder created when you extract.

2.)as to the installing device drivers part, go to HP's consumer support forums and search "pavilion dv4 1120" for a great article on the procedure for installing them, and which ones, as a few are for Vista. follow it precisely, as with this blog's instructions!!!&! (my machine is a pavilion dv4 1123us, but this applies to a whole list of similar machines, from HP, Compaq, Acer, etc, with the same components)

3.)i however, did not do the procedure where you set up "devcon.exe" to run in Startup menu, to restart the MS UAA Driver, as i was saving till last.... and once i rebooted after installing the sound drivers, the sound stopped working. i wanted to see if just perhaps leaving the registry set to "sp2" might eliminate that. nope! so..... set the registry back to "sp3" like this blog says.

4.)finally, i decided to try updating the BIOS on the board (i avoided it to begin with because it WAS only for Vista...) anyway.... sp48847 to be exact. it's ONLY available under the driver list for "Vista" on HP's site, but i decided to try it anyway from within XP, and guess what, it worked! whew, and now the friggin sound and everything else works fine after a reboot, with NO "devcon.exe" tweak! so, the choice is yours: do the tweak, or update the BIOS. heck, maybe even try it before you do anything. either way, it will work, and you can finally get some sleep :)

sorry for a long post, and i'm NOT gonna hijack a thread. simply put, this works, and if not, you're missing something in the directions.

Hi, i been trying many method but the no sound device problem just come back like randomly sometime i turn off the comp and turn it back on and the audio found but now it gone and it doesn't come back again even it come back i use it for like 20 min and the no sound after that.Laptop model:Hp pavilion 6700dv6809wmAudio mode: Conexant HD Audio.

Thanks a million. A top solution. On a Win XP Pro (re-)install (SP2) on a Lenovo T60 Thinkpad, normally I would have installed the device drivers first and the problem wouldn't have arisen.

But didn't think and installed MS updates first (incl SP3) without finishing installing all the drivers first. and then found I couldn't install the Audio drivers because the Soundmax driver wanted the KB888111 installed first. And that (MS download was offline so got from Lenovo site) wouldn't install as it thought it wasn't needed.

Tricking it into thinking SP2 was installed worked. We now have sound.

Sound And Audio Properties in Control Panel show "No Audio Device" in my device manager said system volume there is no driver install. I try many way but still won't fix d problem. Is there any solution? Looking 4ward 2 hear good news tq

i am stuck at this trouble for a week now, i have realtek ALC888 HD audio device which windows cannot recognize in any way, but finally i checked your method and followed the instructions step by step and still there is no sound device also there is no entry for Microsoft UAA Bus in System Devices in the Device Manager. so Any idea how to fix this issue ,thanks in advance...

Hey henry66,Yes, the first link to UAA got expired.However please read carefully Update 3 section it is still relevant and link is functional as of today.As regard the CSDVersion Registry key in question - it's has to be there. Please try to look again.

p.s: I usually ignore most of comments and in fact I answer one first time in a year.. I couldn't really ignore such detailed comment.

Recently I found Realtek audio drivers do include this patch and on installation would fix the issue regardless of SP version

this must be my week of doing things wrong: i keep posting an answer to BoredSysAdmins very useful answer, but it either keeps vanishing or does not appear at all. now what am i doing wrong this time? it is not my week ...

hi i have hp probook 4421s. it has idt audio on it. i couldn't make thing works even after the steps done. It keeps give an error message after the restart and driver instalation failed even i've istalled KB888111 patch...please everyone...any suggestion?

Thanks so much ! I have a Thinkpad T61 running Windowz XP SP3. I was caught in a loop trying to install the HDA audio bus driver that would fail because I was at SP3, then install the soundmax driver which would fail because no HDA driver was found ! Acckkk 4 days of this. Thanks to those Chinese as well I suppose eh ? And Google, for letting me find you.

Hi,Great Job. Your 1st solutions worked for me. Though the 1st two links didn't worked for download of the patch but the 3rd link mentioned in the solution worked for me. I'd checked with Intel people as well, they were also not able to resolve the problem. Though while doing the troubleshooting, I'd understood the problem, but was not sure how to get the solution for SP3 which was already update on my XP system.Thanks for the Support.Please keep up the GOOD JOB.

Not saying anything that wasn't said before here but I spent 3 hours at work going crazy trying to figure out why something that seemed like such a simple problem was stumping me. Thank you so much for this guide you really saved a lot of fustration.

I spent DAYS trying to solve this problem on a DELL 745 using all the information posted on this and various other websites but nothing worked. Then I found that the onboard sound had been disabled in the bios. I just changed the setting and everything miraculously worked.

Question: I applied the fix on my T60 laptop (XP SP3) about 2 months ago and immediately the laptop saw its S/PDIF port. Wonderful1! I shut the system down in a few days and yesterday set it up again but now that port isn't identified. What do I do? What went wrong?

I followed the directions, but whenever i install sp26792 it still says i need the UAA hd audio bus driver installed. I have installed it and i even found it in the device manager. I dont understand why it wont work. Can anyone provide help. It would be appreciated.

Hi Mi name is George I have a issue on mi notebook Hp Compaq 6910 p All is ok ih have sound mixer balance but i can hear sound stereo on laptop speaker or head set.I tri to play from diferite muzic source winamp ,radio nexus,vlc plaver ,youtube.i MAKE A LOT OF SETING IN PANEL CONTROL I INSTALL A LOTS OF VERSION DRIVER I WORK 2 MONTH CAN FIX THAT ISUUE.Sound is mono when change value of balance control sound is mono right or left not change sound only mono.Mi sound card is SoundMAX Integrated Digital HD Audio

MUCH thanks !! I know the audiohardware works because I have used Linux distro and sound isfine. Reloading XP Pro SP3 somy brother can use this C700CTOas he has older audio aps forXP...just LOVE vendor lock-in!